CN103460802B - For driving the actuator device and driving method loading particularly LED component - Google Patents
For driving the actuator device and driving method loading particularly LED component Download PDFInfo
- Publication number
- CN103460802B CN103460802B CN201280017097.6A CN201280017097A CN103460802B CN 103460802 B CN103460802 B CN 103460802B CN 201280017097 A CN201280017097 A CN 201280017097A CN 103460802 B CN103460802 B CN 103460802B
- Authority
- CN
- China
- Prior art keywords
- load
- unit
- memory element
- electric energy
- switch unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000010168 coupling process Methods 0.000 claims abstract description 23
- 238000005859 coupling reaction Methods 0.000 claims abstract description 23
- 230000008878 coupling Effects 0.000 claims abstract description 20
- 239000003990 capacitor Substances 0.000 claims description 65
- 238000003860 storage Methods 0.000 claims description 20
- 230000005611 electricity Effects 0.000 claims description 18
- 238000005259 measurement Methods 0.000 claims description 5
- 230000002457 bidirectional effect Effects 0.000 claims description 2
- 230000014759 maintenance of location Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 9
- 230000001276 controlling effect Effects 0.000 description 5
- 230000001419 dependent effect Effects 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 238000011217 control strategy Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- -1 12V halogen Chemical class 0.000 description 1
- 108010076504 Protein Sorting Signals Proteins 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 230000004899 motility Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/40—Details of LED load circuits
- H05B45/44—Details of LED load circuits with an active control inside an LED matrix
- H05B45/48—Details of LED load circuits with an active control inside an LED matrix having LEDs organised in strings and incorporating parallel shunting devices
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
- H05B45/3725—Switched mode power supply [SMPS]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/40—Details of LED load circuits
- H05B45/44—Details of LED load circuits with an active control inside an LED matrix
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/355—Power factor correction [PFC]; Reactive power compensation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The actuator device (1) of the LED component that one is used for driving load (100) particularly to include two or more LED and corresponding driving method.The actuator device proposed includes: supply terminal (10), is used for receiving supply voltage (VSnull)，Face terminals (20)，For load being coupled to described actuator device and being used for providing electric energy to drive described load to described load，Memory element (40)，For being stored in the electric energy that described supply terminal receives，Coupling unit (50)，It is coupled between described supply terminal and described memory element for switchably providing electric energy from described supply terminal to described memory element，First switch unit (60)，It is coupled between described supply terminal and described load for switchably providing electric energy from described supply terminal to one or more face terminals in described face terminals，Second switch unit (70)，It is coupled between described memory element and described load and switchably provides, for one or more face terminals in described face terminals, the electric energy being stored in described memory element，And control unit (80)，For controlling described coupling unit and described first and second switch units.
Description
Technical field
The present invention relates to a kind of for driving the driver loading the LED component particularly including two or more LED
Equipment and corresponding driving method.Moreover, it relates to a kind of illuminator.
Background technology
In solid-state illumination (SSL), i.e. in general lighting, the relative cost contribution of driver is expected to due to light-emitting diodes
Pipe (LED) cost reduces and increases.Therefore, in order to reduce the cost of total system, driver also must become more inexpensively (particularly
Simpler and/or less).High-performance will be still realized closer to coupling between LED with driver.
When operating LED from the power supply of such as line voltage supply, both electricity input waveform and optics output waveform must
Some standard must be met.This not only for high voltage (HV) LEDS set up, and identical structure may be used for such as with 12V halogen
5 low-voltages LED in replacement system, and it is also used for such as 100 low-voltages LED and line voltage.Utilize as such as existed
Tapped Linear actuator (TLD) described in US6989807B2, US7081722B1 or US2008/0094000A1, proposes
Following method, the method dynamically adjusts these by shunting from the LED strip that power supply is powered or bypass especially
The length of LED, in order to allow LED strip voltage follow AC supply the waveform/elongation of voltage.
Utilizing this method, still have the direct-coupling between electricity input and optics output waveform, therefore impact (subtracts
Less) flicker in light or the non-natural composition of stroboscopic will affect input harmonics.(ripple is represented in order to meet various line voltage regulation
Certain combination of shape, harmonic wave and power factor), between needs electrical waveform and the optics output waveform of light in input more preferably
Uncoupling.
Summary of the invention
It is an object of the invention to provide a kind of for driving load specifically for the LED component including two or more LED
Actuator device and corresponding driving method, various line voltage method can be met by this actuator device and driving method
Rule, and this actuator device and driving method provide the electrical waveform in input and between the output waveform of output more preferably
Uncoupling.
In a first aspect of the present invention, presenting a kind of actuator device, this actuator device includes:
-supply terminal, is used for receiving supply voltage,
-face terminals, for load is coupled to described actuator device and be used for described load provide electric energy with
Just described load is driven,
-memory element, for being stored in the electric energy that described supply terminal receives,
-coupling unit, be coupled between described supply terminal and described memory element for from described supply terminal to institute
State memory element and electric energy be controllably provided,
-the first switch unit, be coupled between described supply terminal and described load for from described supply terminal to institute
One or more face terminals stated in face terminals switchably provides electric energy,
-the second switch unit, is coupled between described memory element and described load in described face terminals
One or more face terminals switchably provides the electric energy of storage in described memory element, and
-control unit, is used for controlling described coupling unit and described first and second switch units.
In still yet another aspect of the present, presenting a kind of corresponding driving method, this driving method comprises the following steps:
-receive supply voltage,
-through face terminals to described load provide electric energy to drive described load,
-store the electric energy received through described supply voltage in the memory unit,
-controllably provide electric energy to described memory element,
-switchably provide electricity from described supply terminal to one or more face terminals described face terminals
Can,
-one or more face terminals in described face terminals switchably provides and is stored in described memory element
In electric energy, and
-control the described step that electric energy is provided to described memory element and described load.
It addition, according to a further aspect in the invention, a kind of illuminator includes lamp unit, especially for including two or many
The LED component of individual LED and be coupled to described smooth unit to drive the actuator device according to the present invention of described smooth unit.
Define the preferred embodiments of the present invention in the dependent claims.It is to be understood that claimed method and requires to protect
The illuminator protected has and claimed unit affinity and/or identical and as claimed in the dependent claims
Preferred embodiment.
The present invention is based on for providing two single output ports for load is coupled to actuator device
The thought of (i.e. at least three face terminals, one of them face terminals may belong to two different output power ports).Supplying
Terminal is answered to provide a power port with direct from supply terminal, i.e. directly from supplying voltage (if necessary finally in rectification
Afterwards) provide electric energy to load.There is provided in memory element (such as including the capacitive memory cells of one or more capacitor)
Another power port thus provide the electric energy of storage in memory element to load.It is therefore proposed that actuator device be designed use
In to load, especially to the independent power delivery of the identical, different of load or lap (the different sections of such as LED strip).
This allows the magnitude of current being controlled independently of each other in supply terminal (such as from mains voltage source) and memory element to load supply.
As result, it is easier to towards concrete laws and regulations requirement, the Harmonic of the most national exclusive laws and regulations requirement, regulate input current ripple
Shape.
Be noted here that the actuator device of proposition typically receive can by by AC line voltage (or any other
Voltage available) required any pretreatment unit (such as transformator, phase inverter or the dimmer) offer supplying voltage is provided
Supply voltage as input.Supply voltage can be voltage or the AC supply voltage of rectification, and pretreatment unit is permissible
Even include the initial step that power signal processes, such as the device of rectification, and therefore can be to the driver proposed
Equipment delivers the voltage of rectification.If available AC line voltage meets the standard of the input for being used as actuator device
Often this situation, then can certainly the most directly use it as AC and supply voltage.But where carries the most here
To " supply voltage ", it can also be interpreted as " line voltage " in some condition or be interpreted as in other embodiments " adjusting
The line voltage of light " or the AC voltage of rectification.It addition, supply voltage can be the most even as such as by electricity
The D/C voltage that pond or commutator and smooth capacitor provide.
According to a preferred embodiment, be arranged to from described face terminals one of described second switch unit or
The multiple face terminals of person switchably provides electric energy to described memory element.This realizes can be not only single to storage from supply terminal
Unit is charged, and can be charged memory element from load, the most therefore can be through the second switch unit to storage
Unit " forward " electric energy provided to load through the first switch unit from supply terminal such as lower part, this part is not supported
Consume or be not load needs.
For this purpose, the second switch unit includes two-way switch, particularly bidirectional current limit switch.Preferably,
Can the most dynamically arrange current limit value is any desirable value.These switches and use in other switch unit
Other switch (commonly referred to as switching device, these switching devices can be unidirectional or two-way) typically can by transistor or
Person's diode, such as NMOS or PMOS transistor are implemented.Alternatively, it is also possible to use in the context of this application and understand
(non-switching formula) current source is switching device.
In another embodiment, described coupling unit and/or the described first and/or second switch unit include for limiting
Through the restriction device of electric current, voltage and/or electrical power that corresponding units provides, the such as switching device of corresponding switch unit
(coupling unit can also include such switching device and can be another switch unit the most effectively).
Such restriction device can include the current source for limiting electric current.Other limits device can include resistor, (non-switching
Formula) current source or for limiting other well known elements of electric current, voltage and/or power.These limit device and make to realize control
Through the amount of electrical power that corresponding units (i.e. coupling unit or first/second switch unit) provides.
In a preferred embodiment, described control unit be arranged to control described first and second switch units with
Switchably providing electric energy according to one or more preassigned to described load, this one or more preassigned is special
Including efficiency, power factor, current waveform, load in different sections homogenizing stress and/or as load light unit
In the case of light output flatness.Therefore can be controlled according to following required control strategy, this control can be pre-selected
System strategy to meet standard needed for some, such as, uses some regulation of regulation in country corresponding.
Advantageously, the described first and/or second switch unit includes cutting for measuring the association through corresponding switch unit
Changing the current measurement device of electric current that element provides, specifically for for shunt resistance device, and described control unit is arranged to
Control described first and second switch units switchably to provide electricity symmetrical general power and power distribution to described load.
This includes in an analog fashion, such as, with the value combination measured, control electric current.In this way, the present invention is being used to be used for driving
During dynamic lamp unit, it is possible to there is the smooth flux from the output of light unit and uniform light.
Preferably, described memory element include two storage lead-out terminals, and described second switch unit include for
Said two is stored lead-out terminal and independently switches to the switching device of two face terminals.This embodiment realizes to load
The more flexible power supply of required part, with such as from memory element to one or more institute of lamp unit (such as LED strip)
The section of need provides electric energy.
In one embodiment it is proposed that actuator device also include being coupled to described supply terminal for the AC received
Supply voltage carries out the rectifier unit of rectification.Preferably, described rectifier unit and described memory element have and are coupled to institute
State the common reference terminal of one of face terminals thus cause the less switching device of needs.
It addition, in one embodiment, described rectifier unit includes two rectifier output end, and described second
Switch unit includes the switching device for said two rectifier output end independently switches to two face terminals.With with
Upper explanation similarly, this embodiment from rectifier unit to load required part provide electric energy time provide more flexibly
Property, with such as from rectifier unit to lamp unit (such as LED strip) one or more needed for section provide electric energy.
In one embodiment, described control unit is arranged to control described first and second switch units, thus
There is provided electric energy from described memory element to the Part I of described load and from described supply terminal (or provided that be then
Described rectifier unit) provide electric energy to the Part II of described load, and according to the electric work currently obtained from supply terminal
Rate quantity is adaptive provides electric energy to described first and second parts.Therefore, the flexible power supply of load can easily realize.
Although can use any such as lower unit as memory element, electric energy can be stored by this unit so that at needs
Time to load deliver, but in a preferred embodiment, described memory element includes capacitive memory cells, particularly including one
Or multiple capacitors.
In one embodiment, control is focused on the power from the input of mains supply unit.Simultaneously because efficiently fill again
The power (voltage) of memory element is noticed in electric and holding.Can be provided by supply terminal further, it is preferable to control is focused on
And do not produce the most multiple-harmonic power.It is said that in general, should not consume with can supply terminal deliver energy as many
Energy, but power should be efficiently supplied to load by memory element and external power source.
Accompanying drawing explanation
Embodiment from the description below is understood and illustrates these and other aspects of the invention with reference to these embodiments.
In the following figures:
Fig. 1 illustrates the schematic block diagram of the total arrangement of the actuator device of the proposition according to the present invention,
Fig. 2 illustrates the schematic block diagram of the first embodiment of the actuator device according to the present invention,
Fig. 3 illustrates the schematic block diagram of the second embodiment of the actuator device according to the present invention,
Fig. 4 illustrates the schematic block diagram of the 3rd embodiment of the actuator device according to the present invention,
Fig. 5 illustrates the signal for illustrating the example signal sequence according to the various signals in the actuator device of the present invention
Figure, and
Fig. 6 illustrates the figure of the frequency spectrum for induced current for illustrating the actuator device according to the present invention.
Detailed description of the invention
Fig. 1 illustrates the schematic block diagram of the total arrangement of the actuator device 1 of the proposition according to the present invention.Described driving is provided
Device equipment 1 is used for driving load 100, and this load is the lamp unit 100 including multiple LED in this embodiment, these LED mono-
Rise and represent illuminator.In this embodiment, AC line voltage is provided from line voltage supply 200 to actuator device 1.
Actuator device 1 includes for receiving the AC supply voltage V from line voltage supply 200 offerSSupply terminal
10 and for load 100 being coupled to described actuator device 1 and is used for providing electric energy to described load 100 so that driving institute
State the face terminals 20 of load 100.In rectifier unit 30 (may also include for filtering and the well known device of protection) right
The AC received supplies voltage VSCarry out rectification.The most on the one hand to described rectifier unit 30 with such as include capacitor
Between memory element 40, the coupling unit 50 of coupling provides the supply voltage of rectification so that from described rectifier unit 30 to described
Memory element 40 switchably provides electric energy.The electric energy that described commutator provides is stored in described memory element 40.At another
Aspect, provides the supply of rectification to the first switch unit 60 coupled between described rectifier unit 30 with described load 100
Voltage is switchably to carry to one or more face terminals described face terminals 20 from described rectifier unit 30
For electric energy.There is provided the second switch unit 70 coupled between described memory element 40 with described load 100 for described negative
Carry one or more face terminals in terminal 20 and the electric energy of storage in described memory element 40 is switchably provided, this
Or multiple face terminals can be other load ends identical from face terminals 20 or that (partially or fully) is different
Son.Control unit 80 is finally provided to be used for controlling described coupling unit 50 and described first and second switch units 60,70.Control
Unit processed can also have the measurement apparatus for measuring some status informations, and this status information is such as such as but not limited to defeated
Enter voltage and/or electric current, storage voltage and/or electric current and/or load configuration, temperature and/or flux.
As shown in fig. 1, can be via the first switch unit 60 to the first port 101 (path a) and to negative of load 100
(path b) delivers the electric energy from rectifier unit 30 to second port 102 of load 100.Similarly, it is also possible to via the second switching
To the first port 101 of load 100, ((it is single that path c) delivers storage to unit 70 for path d) and the second port 102 to load 100
The electric energy of storage in unit 40.According to the present invention, these electrical power delivery may be the most separate.Although path a and b is typically from
One switch unit 60 is unidirectional to load 100, but the energy Flow on c and d of path can be two-way, i.e. can be via
Second switch unit 70 is by being charged memory element 40 via the energy of load 100 delivery.Generally, load 100 will not
Can store or generate electric energy, therefore memory element 40 and the second switch unit 70 receive from load 100 via path c and d
Energy generally simultaneously from input terminal 10 via face terminals 20 and via path a or b to load 100 delivery.
Fig. 2 illustrates the schematic block diagram of the first embodiment of the actuator device 1a according to the present invention.In this embodiment,
Load 100a includes four LED segment L1, L2, L3, L4.Rectifier unit 30a include being coupled as full-bridge four diodes 31,
32, the conventional full bridge rectifier of 33,34.Capacitive memory cells 40a is included in storage input terminal 42,43 and storage lead-out terminal
44, the single capacitor 41 of coupling between 45.It is coupled to the first rectifier output end in two rectifier output end 35,36
The coupling unit 50a of son 35 includes transistor 51 and the resistor 52 forming current limiting switch together.At resistor 51 and
Coupled resistor 52 between one storage input terminal 42.
First switch unit 60a includes four current limiting switches, each current limiting switch by transistor 61,62,63,
64 and resistor 65,66,67,68 series coupled formed.The first terminal of transistor 61,62,63,64 is coupled to the first rectification
Device lead-out terminal 35.Second terminal of resistor 65,66,67,68 represents four lead-out terminals.In this way, can be by whole
The supply voltage switching of stream is to the required face terminals in four face terminals 21,22,23,24.5th face terminals 25 represents
Reference terminal and be coupled to second rectifier output end 36 and second storage lead-out terminal 45.Due to the first switch unit
The current limiting switch of 60a is single-way switch, so electric current flowing is only from rectifier unit 30a to load 100a.
The most similarly, the second switch unit 70a be also included within figure by switch 71,72,73,74 and resistor 75,76,
77, four current limiting switches that the series coupled of 78 represents.The first terminal of switch 71,72,73,74 is coupled to the first storage
Lead-out terminal 44.Second terminal of resistor 75,76,77,78 represents and couples together with the lead-out terminal of the first switch unit 60a
Four lead-out terminals, one of lead-out terminal of the i.e. second switch unit 70a is connected to the lead-out terminal of the first switch unit 60a
One of.In this way, the condenser voltage of storage in capacitor 41 can be switched to four face terminals 21,22,23,24
In required face terminals switching.Due to the current limiting switch of the second switch unit 70a be preferably two-way switch (but also
Can be single-way switch), so electric current not only can flow to load 100a from capacitor 41 but also flow to capacitor 41 from load 100a.
During supply voltage cycle, use is following in one embodiment activates scheme.The zero passage phase at supply voltage
Between, capacitor 41 powers (on off state of switch 71-74 depends on condenser voltage) to load 100a.It is higher than at supply voltage
When loading the first paragraph voltage on the first paragraph (LED L4) of 100a, switch 64 activation, and drive LED from supply voltage
L4.It addition, general power supply to the remainder of LED strip from capacitor 41 (utilizes another embodiment described below, switch-capacitor
Then device 41 to power to L1 and L3, to have being uniformly distributed of power and light).
When supplying voltage higher than two section voltage, switch 64 shutoff, and switch 63 connections to drive L3 and L4.Assume
Capacitor 41 having discharged into similar potential and has switched 51 activation, recharging of present capacitor 41 can start.
In the sequence, operate now increasing section, and capacitor 41 is recharged.In this interval
Between, supply voltage is the most identical with condenser voltage.If mains harmonics/THD laws and regulations requirement, can subtract at any time
Few/to stop to the flow of power loading 100a and more power to be drawn from capacitor 41 from rectifier unit 30a, as long as
There is " backoff interval " for capacitor 41 is recharged again.It is alternatively possible to by arranging coupling unit 50 for more
Low current or no current reduce or the charging of stopping capacitor 41.
Via selecting control strategy, can be towards various criterion, such as optimal light output flatness, optimum efficiency, regulation
Such lamp and maintain required power factor, for the compatible special input current waveform etc. of dimmer.
For controlling, it may be considered that many aspects.First, it may be considered that for the harmonic wave of induced current.As be hereinafter described that
Sample, it must is fulfilled for different requirement.Second, control program should be symmetrical, in order to avoids any 50Hz component in light and input
Any subharmonic in electric current or DC component.It addition, minimizing of loss can be standard.It is the most relevant with this point,
Loss distribution is also important.As example, in fig. 2, capacitor 41 can be via coupling unit 50a or via the first He
Second switch unit 60a, 70a receives charging current.In the first case, loss will emerge from transistor 51, and rear one
In the case of Zhong, loss will be shared between transistor 61 and transistor 71.According to this realization, i.e. three transistors of cooling, at certain
In a little operator schemes, one or another charge path are probably preferably.It is conceived to light output, it is generally preferable to smooth light is defeated
Go out, in order to avoid the non-natural composition of optics, such as flicker and stroboscopic effect.The cooling of the LED being conceived in load and life-span, uncommon
Hope the equal load of section.It is necessary for certain application and carefully assesses all these aspects with suitable control algolithm of deriving.
By measuring from rectifier unit 30a and delivering (such as via shunt resistance device) from capacitor 41 to LED100a
Electric current and know the state of various unit 50a, 60a, 70a, control can balance general power and distribution, in order to have from
The smooth flux of LED component 100a and uniformly light-emitting.
In the embodiment being described above, LED component 100a (including four sections of series coupled) is considered as fixing, and has
Signal/the terminal 25 that two power sources are public, i.e. capacitor 51 and rectifier unit 30a have common ground.
Using shown in Fig. 3 of identical LED component 100a in another embodiment of actuator device 1b, capacitor 41 can
With " floating ", it means that two storage inputs 42 and 43 can be coupled with supply terminal 10 or decouple by coupling unit 50b
Close.
It addition, the second switch unit 70b has two input terminals 110,111 and by switch 112-115 and resistor
More switching devices that 116-119 is formed to be individually coupled to load by the two of capacitor 41 electric capacity lead-out terminals 44,45
100a.It is then possible to face terminals 21-25 any appropriately combined in when charging (or extract from this combination) from electricity
The power of container 41.Therefore, to series connection two LED segment power time, can with unrestricted choice to LED segment L1+L2, L2+L3 or
Person L3+L4 (or other combination, such as be L1+L2+L3 or L2+L3+L4 in the case of three sections) powers.Therefore, may be used
With evenly distribution losses/brightness.
This same (injecting at least for power) is also possible with supply voltage: use the first switch unit 60b with
Two input terminals 120,121 and by switch 122-125 and resistor 126-129 formed more switching device time, it is possible to
To deliver power supply to the required substring of the LED segment of LED component 100a.
To put it more simply, the control line having been left out between control unit 80 and the various unit of actuator device 1b.
It should be noted that, it is said that in general, the configuration of load (such as LED component) is not fixing and multiple without necessarily including
LED is connected in series, but can freely configure (such as series connection and/or parallel connection) load, the section of such as LED component.This will permit
Permitted more flexible handover scheme and more preferably light is exported and loss uniformity.
In figs 2 and 3 in illustrated embodiment, the switch in the 3rd switch unit 70a, 70b is preferably bi-directional.This is a certain
It is redundancy in degree, because the charging of capacitor 41 can also be performed via coupling unit 50a, 50b.Therefore, switch 71 can
With alternatively single-way switch.If required input and output waveform get rid of some switch combination, some switches can be combined
Or replaced by uncoupling diode.
It addition, in figs 2 and 3 in illustrated embodiment, describe switch/transistor have themselves for sensing/limiting
The resistor of electric current processed.Limit, as long as still being possible to control to carry out self-rectifying it practice, some switches can share common current
The electric current of device unit 30a and the electric current from capacitive memory cells 40a.
Fig. 4 illustrates the schematic block diagram of the 3rd embodiment of the actuator device 1c according to the present invention.Analog programming value is (such as
Multiple sine waves of different frequency) for optimum power factor performance.This can be implemented in microprocessor (look-up table).Right
In hardwire control realization mode, utilize the realization of some simulative generators that for controlling loop, most probable is caused high workload
Amount, therefore can from supply voltage measurement derivation signal or can be by several discrete voltage/current level approximate signal.
The parameter of the parts used in actuator device can be regulated to meet standard needed for one or more, such as
The homogenizing stress of the different sections in High Power Factor, high efficiency, load and/or low optical flare.Final design and parameter are general
Balance based on harmonic wave, efficiency and optical property.
In the diagram in illustrated embodiment, parts are arranged to compare with other embodiments shown in Fig. 2 and 3 to be had not
With, in order to make control transfiguration easy in the case of this simplification.Coupling unit (in Fig. 1 50) and the first switch unit are (in Fig. 1
60) represented by public switch unit 90 here.Transistor 91 forms the current source for controlling input current；This is equivalent to above
The coupling unit 50 mentioned and the combination of the current limit function of the first switch unit 60.Here the active of capacitor 41 is not carried out
Charging controls, and only controls the total current consumed from input.For supplying the handoff functionality of power by the LED strip including four sections
Transistor 92,93,94 (with diode 146-149) on the left side of 100a realizes.On right side, transistor 131 also forms electricity
Stream source and representing between capacitor 41 and LED strip 100a together with transistor 132 to 134 (and diode 142-145)
The main element of the second switch unit 70.Effectively, independent adjustment LED strip 100a is inputted for commutator and capacitor power
Length.
In order to provide example, during the peak of supply voltage, capacitor 41 is charged.Via driver negative
The electric discharge on left side carried is intercepted by diode 141.Subsequently, supply voltage reduces, and via transistor 91 and 93 only to negative
Minimum two sections carried are powered.Initially, the energy of completely charged capacitor 41 can be used to via transistor 131 and diode
The all sections of power supplies of 142 couples of load 100a.Although discharging capacitor 41, transistor 132 can be used to power from electricity
Minimum three sections guided into by container 41, and by that analogy.It is apparent that the hypomere of load will be (average than epimere receives more power
For).This is the restriction of the embodiment gram ` that can be described above by reference to Fig. 3 of this simplification embodiment in Fig. 4.
Transistor 91 receives the signal being made up of the harmonic wave of supply electric voltage frequency.Transistor 131 is based at required LED power
And currently the comparison between the power that rectifier unit 30a enters LED strip 100a receives order.
Input current is programmed (the driving signal via for transistor 91) and predefines shape as follows for having, and this makes a reservation for
Justice shape basically comprises substantially, the three, the 5th components are until the harmonic distortion level that allows in a particular application or power
Factor.This restriction is by generally by being used for the standard (such as IEC61000-3-2) of some country, origin Self-certified labelling (such as
Energy star) the definition such as additional requirement.Owing to these requirements are for different application (country, lamp or module type, merit
Rate level) and different, so optimum waveform implementation is determined by compromise between relevant criterion and condition.Used herein
First-harmonic and the 3rd and the 5th harmonic wave only represent non-restrictive example.
To the suitable tap of LED strip 100a feed after capacitor 41 is charged still can for induced current number
Amount.Monitor this power and it is compared with reference signal.Error signal drives the second current source 131, thus control from
Capacitor 41 delivers to the power of LED strip 100a.According to the voltage of capacitor 41, feed this to the suitable tap of LED strip 100a
One electric current.
Figure 5 illustrates some waveforms.Fig. 5 A illustrates the power delivered from capacitor 41 to LED strip 100a.Fig. 5 B illustrates
The power delivered to LED strip 100a from rectifier unit 30c.Fig. 5 C illustrates supply voltage VSWith confession induced current IS。
From t1 to t2, supply voltage is less than minimum tap voltage, thus the voltage supply in LED strip 100a is not can
Can, but LED strip 100a is only powered by capacitor 41.From t2 to t3, supply voltage is high enough to operate some LED segment.Whole
Stream device unit 30c and capacitor 41 both by injection current in suitable tap come to LED strip 100a delivered power, i.e. to
The different port delivered power of LED light source.At t3, supply voltage level is equal to the voltage level of the capacitor 41 of electric discharge, thus
Capacitor 41 recharge beginning.Time period t 3 to t4 includes the sequence being spaced as follows, from rectifier unit in these are spaced
Capacitor 41 is charged by 30c, and rectifier unit 30c or capacitor 41 are to LED strip 100a delivered power.At t4,
Capacitor 41 charges.Power to LED strip 100a from t4 to t6, rectifier unit 30c, and capacitor 41 is the most unloaded.At t5,
Though the most smooth for induced current, LED power exists step, this instruction now to different (under) tap injected supply
Induced current, because the voltage level from rectifier unit 30c no longer allows in the longest LED strip, i.e. to having ceiling voltage
Input power port in feed.Power to some LED segment from t6 to t7, rectifier unit 30c, and capacitor 41 is also to one
A little LED segment are powered.
It should be noted that simulation waveform shown in Fig. 5 has the most inefficient and the highest optical flicker.It will be understood as the simplest
Single example, it is shown that double power input driver can from rectifier unit and from capacitor to single led statements based on collusion electricity.Waveform is had
It is designed as that there is the 3rd and the 5th high component to meaning, because this is available by increasing for the angle less than 60 ° with more than 120 °
Electric current and reduce the electric current near peak (60 ° ... 120 °).These current-modulation contribute at more low supply voltage from shorter
LED strip produces more light, and does not produces too many harmonic wave or too low power factor.Take out with capacitor or LED at supply voltage
Any difference between head voltage is dissipated into heat via current source 91 and/or 131.
Can arrange power factor is the most any value.Utilize input current waveform used above (i.e. for 91
Control signal), it is achieved power factor 0.95.
Motility during LED strip is being driven to be also advantageous for light modulation from multiple power sources.Dim preferably for forward position
(TRIAC light modulation), it is achieved at least some switch in the switch in the second switch unit 70 is two-way realization, with through overload
100 pairs of capacitors 41 are charged, and affect efficiency without a large amount of to have limited pouring in.
Frequency spectrum shown in Fig. 6 only illustrates less distortion.
Add leadage circuit afterwards (to allow the current path near the zero passage of supply voltage, in order to dimmer
Supply auxiliary power and timing information) time, this will be further reduced harmonic wave.
Compare with standard TLD actuator device, according to the present invention it is possible to control the power quantity given to load.Especially
Low, can draw from rectifier unit (the most directly from input supply (such as from city's power supply)) and/or capacitor
Power for load.Furthermore it is possible to control from rectifier unit, capacitor to be recharged, and pass via through overload
It is possible that capacitor is recharged by the power sent.
As described above, the important element of the present invention includes having ties load more, such as LED light source, Qi Zhongbu
Putting load to make to there is multiple (at least two) port for load delivered power, wherein these at least two ports are permissible
Share a common pin, for therefore amounting to, have at least three pin (input 1, input 2, public output) or can be mutual
Uncoupling, thus have four pins (input 1, output 1, input 2, output 2).With reference to the implementation in Fig. 4, load has 5
Individual pin.Due to the check configuration used in the example present, there are 4 inputs and 1 output.Utilize different driving device equipment
(such as including two-way switch), it is possible to use these pins in some pins be input and/or output.The driver proposed
Equipment preferably includes supply input, storage device (such as capacitor), is used for from supplying input and/or capacitor to load
The transporter of the first and/or second power port delivering power (includes for limiting the electric current of delivery, voltage or power number
The device of amount).Preferably, also there is the general power that control circuit device balance delivers to load via at least two port, thus
Load output (such as light output) is stable, regardless of whether the current power input selected.
Although the two of above-mentioned load power port are required minimum, but actual implementation will have use
In various voltage levels to load delivered power more multi input.As example, can for the implementation used in Europe
Be divided into being about at the maximum LED voltage level of 280V of four sections to have, therefore have more than 70V, more than 140V, be more than
The power input of 210V and the power voltage more than 280V is possible.Compare with TLD implementation, LED strip current the most not from
The part that first power supply (such as civil power) is powered is not split or bypasses, but is allowed to from second source (such as capacitor)
Receive power.To achieve it, exist transporter in driver multiple inputs (i.e. from rectifier unit/
Supply inputs and carrys out sufficient power from capacitor).This can be considered as different from the key of TLD, in TLD, finally, and rectifier unit and electricity
The public input in the LED strip of switching shared by container, thus can not deliver at different voltage levels to LED light source simultaneously
Two power.
Preferably during each half-wave of supply voltage, from rectifier unit, capacitor must be filled again at any time
Electricity.In addition, it is also possible to via load and transporter, capacitor is recharged, it means that it is via being commonly used to
Port to load delivered power receives power.Therefore, a port rate of doing work of load inputs and another port work done
Rate exports.When selecting appropriate voltage level, the part of input power will be processed by load (changing into light and heat), and remainder
Divide and be delivered to capacitor and it is recharged.This realizes handling electricity input waveform further.Generally, electricity is once supplied
The voltage level that pressure has been discharged into higher than capacitor, recharging of capacitor will appear from.Via load (part
Ground) when recharging, this recharge current can be moved towards different time points.
Compareing with the rectifier unit to this layout delivery of energy, capacitor can only store energy for limited time interval
Measure and serve as power supply.During to discharging capacitors, its voltage will reduce.Due to load at preferably different voltages
Multiple power input ports of level, capacitor still can be to load delivered power, as long as voltage is the lowest defeated higher than load
Enter voltage level.Parallel with this, load can also receive power at different voltages or power level from rectifier unit.Cause
This, be given for based on electricity input and optics output waveform require from power input (rectifier unit, capacitor) arbitrary
The individual probability to load delivered power.Any power delivered to load will have contribution to load output, and only from commutator
Electric current and the recharge current of capacitor that unit directly transmits to load have contribution to electricity input waveform.
As result, give for electricity input waveform is carried out the most flexible of shaping according to the actuator device of the present invention
Property, therefore realize more low harmony wave and THD and more power factor and impact on light output reduces.
Memory element is implemented by a capacitor (or multiple capacitor) the most as shown in Example, but can
To be used instead for storing other element of electric energy, such as accumulator or inductive energy storage device.
The rectifier unit illustrated in an embodiment is not the essential element of the actuator device proposed, but only in supply
Voltage is just provided in the case of can not being used directly to drive load and be charged memory cell.
Load preferably includes LED component, but the actuator device proposed can be used for driving and has more than two
Terminal other load, the Part I wherein loaded can by the first power drives, and Part II can by second electricity
Source drives (and wherein part can be changed) with the power supply driving appropriate section.Other load such can include it
Its lamp assembly, electronic unit, audio unit etc..
Although accompanying drawing and described above in be specifically illustrating and describe the present invention, but such diagram and describe will
It is considered as example or for example and not limitation；The invention is not restricted to disclosed embodiment.Those of ordinary skill in the art can be in reality
From accompanying drawing, the studying middle understanding carefully and realize disclosed reality of disclosure and appended claims during existing claimed invention
Execute other change of example.
In the claims, wording " includes " not getting rid of other element or step, and indefinite article " " is not arranged
Except multiple.Discrete component or other unit can realize the function of some described in claim.Mutually different
It is recited in mutually different dependent this mere fact of some measure and does not indicates the combination that can not favorably use these measures.
Any reference in claim should be construed to restriction scope.
Claims (22)
1. the actuator device (1) being used for driving load (100), described actuator device includes:
-supply terminal (10), is used for receiving supply voltage (VS),
-face terminals (20), for load is coupled to described actuator device and be used for described load provide electric energy with
Just described load, wherein said face terminals is driven to include the tap of the section in described load,
-memory element (40), for being stored in the electric energy that described supply terminal receives,
-coupling unit (50), be coupled between described supply terminal and described memory element for from described supply terminal to institute
State memory element and electric energy be controllably provided,
-the first switch unit (60), be coupled between described supply terminal and described load for from described supply terminal to institute
One or more face terminals stated in face terminals switchably provides electric energy,
-the second switch unit (70), is coupled between described memory element and described load for via realizing from described storage
Unit is to the connection of one or more described tap of the section in described load and in described face terminals or many
Individual face terminals switchably provides the electric energy being stored in described memory element, and
-control unit (80), is used for controlling described coupling unit and described first switch unit and described second switch unit.
Actuator device the most according to claim 1 (1),
Wherein said load (100) is the LED component including two or more LED.
Actuator device the most according to claim 1 (1),
One or more face terminals that wherein said second switch unit (70) is arranged to from described face terminals
Electric energy, described second switch unit (70) is switchably provided to be configured to pass and will be stored in described storage to described memory element
Voltage switching in unit (40) realizes described connection to the desired tap in described load, and wherein said first switching
Unit (60) is arranged for carrying out directly connecting of the one or more described tap of the section in described supply terminal to described load
Connect.
Actuator device the most according to claim 3 (1),
Wherein said second switch unit (70) includes two-way switch,
The connection of the one or more described tap of wherein said section in described memory element to described load is from described
Memory element (40) arrives being directly connected to via resistor (75,76,77,78) of the described desired tap in described load,
Wherein said first switch unit (60) is configured to the section voltage according to the section in described supply voltage and described load, comes
Being directly connected to of the one or more described tap of realization section in described supply terminal to described load,
Wherein said first switch unit (60) is configured to when described supply voltage is higher than the first paragraph voltage of first paragraph simultaneously
Directly described first paragraph is connected to described supply voltage, and described second switch unit (70) is configured to directly by described negative
Residue section in load is connected to described memory element (40), and
Wherein when described supply voltage is higher than two section voltage, described first switch unit (60) is configured to drive said two
Section, when described memory element (40) be discharged into the similar potential as described supply voltage and described supply voltage and
When switch (51) between described memory element (40) is activated, described memory element (40) recharge beginning.
Actuator device the most according to claim 4 (1),
Wherein said two-way switch is bidirectional current limit switch.
Actuator device the most according to claim 1 (1),
Wherein said coupling unit (50) and/or described first switch unit (60) and/or described second switch unit (70) wrap
Include the restriction device for limiting the electric current, voltage and/or the electrical power that provide through corresponding units.
Actuator device the most according to claim 6 (1),
Wherein said restriction device includes the current source for limiting electric current.
Actuator device the most according to claim 1 (1),
Wherein said control unit (80) is arranged to control described first switch unit (60) and the second switch unit (70)
Switchably to provide electric energy according to one or more preassigned to described load.
Actuator device the most according to claim 8 (1),
One or more preassigned wherein said includes efficiency, power factor, current waveform, difference in described load
Section homogenizing stress and/or lamp unit as load in the case of light output flatness.
Actuator device the most according to claim 1 (1),
Wherein said first switch unit (60) and/or described second switch unit (70) include for measuring through corresponding switching
The current measurement device of the electric current that the association switching device of unit provides, and
Wherein said control unit (80) is arranged to control described first switch unit (60) and described second switch unit
(70) switchably to provide electricity symmetrical general power and power distribution to described load.
11. actuator devices according to claim 10 (1),
Wherein said current measurement device is shunt resistance device.
12. actuator devices according to claim 1 (1),
Wherein said memory element (40) includes two storages lead-out terminal (44,45), and wherein said second switch unit
(70) include independently switching to the switching device of two face terminals for said two stores lead-out terminal.
13. actuator devices according to claim 1 (1),
Also include being coupled to described supply terminal for supplying voltage (V to the AC receivedS) carry out the rectifier unit of rectification
(30)。
14. actuator devices according to claim 13 (1),
Wherein said rectifier unit (30) and described memory element (40) have and are coupled to the public of one of described face terminals
Reference terminal (36).
15. actuator devices according to claim 13 (1),
Wherein said rectifier unit (30) includes two rectifier output end (35,36), and wherein said second switching
Unit (70) includes the switching device for said two rectifier output end independently switches to two face terminals.
16. actuator devices according to claim 13 (1),
Wherein said control unit (80) is arranged to control described first switch unit (60) and described second switch unit
(70), thus electric energy is provided and from described supply terminal (10) from described memory element (40) to the Part I of described load
There is provided electric energy to the Part II of described load, and fit according to the amount of electrical power currently obtained from described supply terminal (10)
The electric energy that Part I described in orientation and Part II provide.
17. actuator devices according to claim 1 (1),
Wherein said memory element (40) includes capacitive memory cells.
18. actuator devices according to claim 17 (1),
Wherein said capacitive memory cells includes one or more capacitor (41).
19. 1 kinds of driving methods being used for driving load (100), described driving method comprises the following steps:
-receive supply voltage (V from supply terminal (10)S),
-through face terminals to described load provide electric energy to drive described load,
-in memory element (40), store the electric energy received through described supply voltage,
-controllably provide electric energy to described memory element,
-switchably provide electric energy from described supply terminal to one or more face terminals described face terminals,
-one or more face terminals in described face terminals switchably provides and is stored in described memory element
Electric energy, and
-control the described step that electric energy is provided to described memory element and described load.
20. driving methods according to claim 19,
Wherein said load (100) is the LED component including two or more LED.
21. 1 kinds of illuminators, including:
-lamp unit (100), and
-actuator device according to claim 1 (1), is coupled to described lamp unit to drive described lamp unit.
22. illuminators according to claim 21,
Wherein said lamp unit (100) is the LED component including two or more LED.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP11161748.6 | 2011-04-08 | ||
| EP11161748 | 2011-04-08 | ||
| PCT/IB2012/051470 WO2012137103A1 (en) | 2011-04-08 | 2012-03-28 | Driver device and driving method for driving a load, in particular an led assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103460802A CN103460802A (en) | 2013-12-18 |
| CN103460802B true CN103460802B (en) | 2016-08-17 |
Family
ID=45932471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280017097.6A Active CN103460802B (en) | 2011-04-08 | 2012-03-28 | For driving the actuator device and driving method loading particularly LED component |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US9258868B2 (en) |
| EP (1) | EP2695485B1 (en) |
| JP (1) | JP6032764B2 (en) |
| CN (1) | CN103460802B (en) |
| BR (1) | BR112013025602A2 (en) |
| RU (1) | RU2587475C2 (en) |
| WO (1) | WO2012137103A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102412745A (en) * | 2011-11-19 | 2012-04-11 | 马丽娟 | Multi-channel load drive circuit |
| TWI477194B (en) * | 2013-05-29 | 2015-03-11 | Richtek Technology Corp | Light emitting diode drive device |
| US9549445B2 (en) * | 2013-10-31 | 2017-01-17 | 3M Innovative Properties Company | Sectioned network lighting device using full distribution of LED bins |
| US9491821B2 (en) * | 2014-02-17 | 2016-11-08 | Peter W. Shackle | AC-powered LED light engine |
| WO2015128388A1 (en) | 2014-02-26 | 2015-09-03 | Koninklijke Philips N.V. | Driver arrangement |
| WO2016093534A1 (en) * | 2014-12-12 | 2016-06-16 | 서울반도체 주식회사 | Led drive circuit with improved flicker performance, and led lighting device comprising same |
| US10187945B2 (en) * | 2014-12-12 | 2019-01-22 | Seoul Semiconductor Co., Ltd. | LED drive circuit with improved flicker performance, and LED lighting device comprising same |
| JP6653452B2 (en) * | 2016-09-20 | 2020-02-26 | パナソニックＩｐマネジメント株式会社 | Protection circuit for dimmer and dimmer |
| WO2018162414A1 (en) * | 2017-03-09 | 2018-09-13 | Philips Lighting Holding B.V. | Lighting device, system and method for controlling a lighting device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5663719A (en) * | 1993-04-29 | 1997-09-02 | Electro-Tech's | LED traffic signal light with automatic low-line voltage compensating circuit |
| CN1430458A (en) * | 2001-12-19 | 2003-07-16 | 尼古拉斯·伯埃诺肯托 | Electronic ballast system with emergency lighting apparatus |
| CN1659930A (en) * | 2002-06-13 | 2005-08-24 | 皇家飞利浦电子股份有限公司 | Autonomous solid state lighting system |
| US6989807B2 (en) * | 2003-05-19 | 2006-01-24 | Add Microtech Corp. | LED driving device |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5661645A (en) * | 1996-06-27 | 1997-08-26 | Hochstein; Peter A. | Power supply for light emitting diode array |
| US6690146B2 (en) * | 2002-06-20 | 2004-02-10 | Fairchild Semiconductor Corporation | High efficiency LED driver |
| US7081722B1 (en) | 2005-02-04 | 2006-07-25 | Kimlong Huynh | Light emitting diode multiphase driver circuit and method |
| JP5188690B2 (en) | 2006-08-29 | 2013-04-24 | アバゴ・テクノロジーズ・イーシービーユー・アイピー（シンガポール）プライベート・リミテッド | Apparatus and method for driving an LED |
| KR101370363B1 (en) * | 2006-10-06 | 2014-03-05 | 코닌클리케 필립스 엔.브이. | A switched light element array and method of operation |
| DE102006061976B4 (en) | 2006-12-21 | 2010-09-16 | Zf Friedrichshafen Ag | Suspension for a vehicle |
| US20090200953A1 (en) * | 2008-02-08 | 2009-08-13 | Ray James King | Methods and apparatus for a high power factor ballast having high efficiency during normal operation and during dimming |
| WO2009138104A1 (en) * | 2008-05-14 | 2009-11-19 | Lioris B.V. | Led-based lighting system with high power factor |
| EP2298029B1 (en) * | 2008-05-14 | 2013-10-16 | Lioris B.V. | Switched-mode power supply, led lighting system and driver comprising the same |
| TWI580305B (en) | 2008-09-05 | 2017-04-21 | 艾杜雷控股有限公司 | Led based lighting application |
| US8174212B2 (en) * | 2008-11-30 | 2012-05-08 | Microsemi Corp.—Analog Mixed Signal Group Ltd. | LED string driver with light intensity responsive to input voltage |
| WO2011084525A1 (en) * | 2009-12-16 | 2011-07-14 | Exclara, Inc. | Adaptive current regulation for solid state lighting |
| CN102244955B (en) | 2010-05-14 | 2015-12-30 | 皇家飞利浦电子股份有限公司 | Adaptive circuit |
| RU101306U1 (en) * | 2010-06-09 | 2011-01-10 | Владимир Авраамович Смолянский | EMERGENCY CONTINUOUS LAMP WITH LED LOADS |
| JP5639389B2 (en) * | 2010-06-24 | 2014-12-10 | 株式会社光波 | LED driving device and LED lighting device |
| EP2656689A1 (en) | 2010-12-21 | 2013-10-30 | Koninklijke Philips N.V. | Device and method for controlling current to solid state lighting circuit |
-
2012
- 2012-03-28 US US14/009,118 patent/US9258868B2/en active Active
- 2012-03-28 BR BR112013025602A patent/BR112013025602A2/en not_active Application Discontinuation
- 2012-03-28 RU RU2013149795/07A patent/RU2587475C2/en active
- 2012-03-28 JP JP2014503242A patent/JP6032764B2/en active Active
- 2012-03-28 CN CN201280017097.6A patent/CN103460802B/en active Active
- 2012-03-28 EP EP12712768.6A patent/EP2695485B1/en active Active
- 2012-03-28 WO PCT/IB2012/051470 patent/WO2012137103A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5663719A (en) * | 1993-04-29 | 1997-09-02 | Electro-Tech's | LED traffic signal light with automatic low-line voltage compensating circuit |
| CN1430458A (en) * | 2001-12-19 | 2003-07-16 | 尼古拉斯·伯埃诺肯托 | Electronic ballast system with emergency lighting apparatus |
| CN1659930A (en) * | 2002-06-13 | 2005-08-24 | 皇家飞利浦电子股份有限公司 | Autonomous solid state lighting system |
| US6989807B2 (en) * | 2003-05-19 | 2006-01-24 | Add Microtech Corp. | LED driving device |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2587475C2 (en) | 2016-06-20 |
| EP2695485B1 (en) | 2016-12-28 |
| WO2012137103A1 (en) | 2012-10-11 |
| RU2013149795A (en) | 2015-05-20 |
| JP6032764B2 (en) | 2016-11-30 |
| EP2695485A1 (en) | 2014-02-12 |
| US20140015441A1 (en) | 2014-01-16 |
| CN103460802A (en) | 2013-12-18 |
| JP2014518005A (en) | 2014-07-24 |
| US9258868B2 (en) | 2016-02-09 |
| BR112013025602A2 (en) | 2016-12-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103460802B (en) | For driving the actuator device and driving method loading particularly LED component | |
| KR102061318B1 (en) | Led drive apparatus for continuous driving of led and driving method thereof | |
| TWI508630B (en) | Bipolar (dis)charging led drive circuit | |
| US8736178B2 (en) | LED lighting apparatus equipped with high-efficiency power supply | |
| CN201682668U (en) | Power supply with light adjusting function for LED (light-emitting diode) lamp | |
| CN104813742B (en) | Supply voltage management | |
| EP3099139B1 (en) | Efficient lighting circuit for led assemblies | |
| KR102132665B1 (en) | Led drive apparatus for with dual full bridge diodes, and led luminescent apparutus comprising the same | |
| EP2496056B1 (en) | Constant-current-drive led module device | |
| TWI450641B (en) | Bi-directional light emitting diode drive circuit in bi-directional divided power impedance | |
| JP2016510496A (en) | Power supply circuit that converts the blinking frequency of light emitting diodes | |
| RU2584822C2 (en) | Circuit adapted to supply voltage to electronic device and use thereof | |
| CN101489326A (en) | Uni-directional light emitting diode drive circuit in bi-directional power parallel resonance | |
| CN103535114A (en) | LED retrofit driver circuit and method of operating the same | |
| CN104025711B (en) | The drive circuit loaded at least one and the method operated on it | |
| CN101489330A (en) | Uni-directional light emitting diode drive circuit in bi-directional divided power impedance | |
| CN101489332A (en) | Uni-directional light emitting diode drive circuit in pulsed power series resonance | |
| CN106817801A (en) | Alternating-current light emitting diode illuminator, LED controller and control method | |
| CN201369849Y (en) | LED one-way driver circuit of impulse power parallel resonance | |
| KR101473573B1 (en) | Power Supply for LED | |
| CN105915086B (en) | High-efficiency AC/D/C power circuit and its control method and method of supplying power to | |
| CN110521284A (en) | LED illumination driver and driving method | |
| CN201444708U (en) | LED one-way drive circuit with bidirectional electric energy series resonance | |
| JP2019194974A (en) | Device for driving light-emitting element and method for driving the same | |
| TWI672975B (en) | Light-emitting element driving device and driving method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170314 Address after: The city of Eindhoven in Holland Patentee after: KONINKL PHILIPS NV Address before: The city of Eindhoven in Holland Patentee before: Koninkl Philips Electronics NV |
|
| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: Eindhoven Patentee after: Signify Holdings Ltd. Address before: The city of Eindhoven in Holland Patentee before: PHILIPS LIGHTING HOLDING B.V. |
|
| CP03 | Change of name, title or address |